Michael Tokarev a écrit :> [Please excuse me for the resend, --> picked the wrong address for netdev again]> > Hello.> > This is a resend (sort of) of several months old email.> Previous email about this issue has been mostly ignored.> > The situation is very simple: with an RTL8169 (probably> onboard) GigE card which, by default, is configured to> have MTU (maximal transmission unit) to be 1500 bytes,> it's *trivial* to instantly crash the machine by sending> it a *single* packet of size >1500 bytes (provided the> network switch can handle jumbo frames).> > I verified with on several different machines - all I were> able to find with this card - and all behaves exactly the> same.> > When sending a packet of size, say, 3000 bytes (ping -s 3000)> from another machine to a machine running rtl8169 with no> MTU configured, kernel OOPSes.> > I captured one such OOPS (unfortunately without the first> line few lines) here:> > http://www.corpit.ru/mjt/r8169-mtu-oops.jpg> > (since the network goes boom at that time, no network console> is working).> > But for anyone familiar with the driver's internals it> should be easy to figure the issue out.> > This is, in my opinion, quite a serious issue. And I've no> idea why it is being ignored for several months.